@book { AdelserziehungaufdeutschenRitterakademien,
    title = "Adelserziehung auf deutschen Ritterakademien",
    subtitle = "Die Lüneburger Adelsschulen 1655-1850",
    author = "Klaus {Bleeck}",
    year = "1978",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1070218"
}